Question

 The height of an equilateral triangle of side 5cm is: (Use: √3 = 1.732)​

Answer 1

USING PYTHAGORAS THEOREM WE GET :

$\frac{ {5}^{2} }{1} - \frac{ {5}^{2} }{ {2}^{2} } = height$

$\frac{100 - 25}{4} = height$

$\sqrt{ \frac{5 \times 5 \times 3}{2 \times 2} } = height$

$\frac{5}{2} \times 1.732 = height$

$4 \frac{33}{100} = \frac{433}{100} = 4.33 = heght$

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